H,W=map(int,input().split())
A=list(map(int,input().split()))
B=list(map(int,input().split()))
A.sort()
B.sort(reverse=True)
degree=[0]*H*W
edges=[]
for h in range(H):
    for w in range(A[h]-1):
        edges.append((h*W+w,h*W+w+1))
    for w in range(A[h],W-1):
        edges.append((h*W+w+1,h*W+w))
for w in range(W):
    for h in range(B[w]-1):
        edges.append((h*W+w,(h+1)*W+w))
    for h in range(B[w],H-1):
        edges.append(((h+1)*W+w,h*W+w))
graph=[[] for x in range(H*W)]
for x,y in edges:
    graph[x].append(y)
    degree[y]+=1
queue=[x for x in range(H*W) if degree[x]==0]
ans_lst=[[None]*W for h in range(H)]
n=1
while queue:
    x=queue.pop()
    h,w=divmod(x,W)
    ans_lst[h][w]=n
    n+=1
    for y in graph[x]:
        degree[y]-=1
        if degree[y]==0:
            queue.append(y)
for h in range(H):
    print(*ans_lst[h])